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Exclude certain columns from sync if instructed to do so

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For the Geocoding (and in general for LDS use cases) it may come in
handy to exclude geometry columns from the list of stuff to
syncrhonize. Otherwise they may be lost, overwritten with NULL values.
This commit is contained in:
Rafa de la Torre
2019-05-28 16:11:56 +02:00
parent 2f8ea7e4ea
commit a2723a3c90
3 changed files with 40 additions and 3 deletions
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8
scripts-available/CDB_SyncTable.sql
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@@ -80,7 +80,7 @@ $$ LANGUAGE sql VOLATILE PARALLEL UNSAFE;
SELECT CDB_SyncTable('radar_stations', 'public', 'syncdest');
*/
CREATE OR REPLACE FUNCTION CDB_SyncTable(src_table REGCLASS, dst_schema REGNAMESPACE, dst_table NAME)
CREATE OR REPLACE FUNCTION CDB_SyncTable(src_table REGCLASS, dst_schema REGNAMESPACE, dst_table NAME, skip_cols NAME[] = '{}')
RETURNS void
AS $$
DECLARE
@@ -106,8 +106,10 @@ BEGIN
RETURN;
END IF;
-- Get the list of columns from the source table, excluding cartodb_id
SELECT ARRAY(SELECT quote_ident(c) FROM _CDB_GetColumns(src_table) as c WHERE c <> 'cartodb_id') INTO colnames;
skip_cols := skip_cols || '{cartodb_id}';
-- Get the list of columns from the source table, excluding skip_cols
SELECT ARRAY(SELECT quote_ident(c) FROM _CDB_GetColumns(src_table) as c EXCEPT SELECT unnest(skip_cols)) INTO colnames;
quoted_colnames := array_to_string(colnames, ',');
src_hash_table_name := __CDB_GenerateUniqueName('src_sync');